So, I recently bought a Dell XPS 15z from the Dell Outlet store and after about a month of use, I started to experience a problem. This problem has only occurred while playing 2 specific games, Penumbra Overture and League of Legends. It's not something that happens every time I play these games either and sometimes it does not occur for weeks. So here's the actual problem: - When playing these games, a loud buzzing sound (is the best way to describe it) plays through I believe the speakers. When I have speakers plugged in it seems to play through the speakers and when I have my headset on it seems to come through the headset. The sound is like a BRRRR sound that occurs for about 1-3 seconds and then it stops. - The screen also freezes, sometimes it freezes and sometimes it turns black. - I can alt+tab and move my cursor but doing so just makes the screen black and I can't really interact with my desktop or anything. - I can also ctrl+alt+delete to bring up the Windows 7 menu thing that has Lock this Computer, Switch User, etc. and I can click those but upon returning to the main screen, everything is pretty much unresponsive. - The only way I know to recover from this problem is to force restart by holding down the power button My Computer Specs: Windows 7 Intel Core i7-2630QM @2.00GHz processor 6GB of RAM Nvidia Geforce GT 540M graphics card Let me know if you need any more information. Thanks!